摘要
针对永磁同步电机(Permanent magnet synchronous motor,PMSM)速度伺服系统,提出了一种分数阶(Fractional order,FO)内模控制器设计方法。建立了PMSM速度伺服系统的简化数学模型,根据内模控制(Internal model control,IMC)原理,引入分数阶滤波器替代整数阶滤波器,推导出了一种分数阶内模控制器,该控制器仅包含两个可调参数,有效克服了分数阶PIλDμ控制器待整定参数较多的缺陷,并基于系统时域性能指标选择主导极点,给出了控制器参数的解析整定方法,避免了参数选择的盲目性。仿真结果表明,所提方法不仅可以使PMSM速度伺服系统具有较好的设定值跟踪和扰动抑制特性,而且对于系统参数摄动具有更好的鲁棒性。
A design method of fractional order(FO) internal model controller for permanent magnet synchronous motor(PMSM) speed servo system was proposed. The simplified mathematical model of speed servo system was built. Based on internal model control(IMC) principle, the FO internal model controller was deduced by using the FO filter to replace the integer order one. The proposed controller contained only two adjustable parameters, and the defects of the fractional PIλDμ controller tuning method were effectively overcome. Moreover, the dominant pole was selected according to the time domain performance indicators of the system, and an analytical tuning approach of the controller was given. So the blindness of selecting the controller parameter was avoided. The simulation results show that the proposed method not only could provide a better dynamic performance of both the command tracking and disturbance rejection for PMSM speed servo system, but also provide a better robustness against parameters perturbation.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2015年第2期384-388,共5页
Journal of System Simulation
基金
山西省自然科学基金(2012011027-4)
太原科技大学研究生创新计划(20125013)
关键词
永磁同步电机
速度伺服系统
内模控制
分数阶
主导极点
permanent magnet synchronous motor
speed servo system
internal model control
fractional order
dominant pole
